UK's PureTech Health falls after Nordic Capital exits deal talks
** London-listed shares of PureTech Health PRTC.L fall as much as 13.7% to 119.2p - top decliner across London stocks ** Nordic Capital XI says it does not intend to make an offer for the British company after it rejected a previous proposal ** Details of the proposal were not disclosed ** PRTC has fallen about 8% so far this year (Reporting by Yamini Kalia in Bengaluru) ((Yamini.Kalia@thomsonreuters.com;))